Petroglyph Trail

Petroglyph Trail is a 3.4-mile out-and-back from Reef Bay Trailhead on Centerline Road to a freshwater pool and rock carvings, then back the same way. The route descends about 1.5 miles on Reef Bay Trail before the roughly 0.2-mile Petroglyph spur. The older park brochure’s 0.2-mile, 15-minute figure is just that short spur, not the hike from the road. Allow 2 to 4 hours; I’d plan around three if you want time at the pool and a careful climb back. Go for the rock art and the forested valley. Don’t choose it expecting a quick waterfall stop: the waterfall is intermittent, and the approach is the real commitment.

The Reef Bay trailhead is near mile marker 5 on Centerline Road. A small parking area sits across the road from the entrance; local trail information puts capacity at about four or five cars. There’s no water source or toilet listed at this start, so bring the water you’ll want for the full outing. NPS says the day hike does not require a reservation. Dogs are allowed on park trails on a leash no longer than six feet; dogs aren’t allowed on beaches.

A stone stairway drops from the road into shaded forest. The trail is steep, rocky and uneven, and NPS warns it can be slippery even when dry. The upper valley is moist and heavily wooded; farther down, the terrain opens and the forest gets drier. You pass remnants of the Reef Bay sugar estate, including an old horse mill and waterworks around Jossie Gut. This makes the walk more interesting than a straight march to the pool, but it doesn’t change the effort: you’ll retrace the descent uphill after the spur.

The Petroglyph Trail leaves Reef Bay Trail about 1.5 miles below the road. This branch is much flatter than the main descent. Near its end, a usually dry stream crossing leads into the pool area. The freshwater pool sits below a rock face; the carvings are on the rock above it. Living Gut feeds the pool, and a waterfall drops into this spot after sufficiently wet weather. It may be dry when you arrive. The pool and carvings are still the payoff, so don’t make a flowing fall the reason for choosing the hike.

The National Park Service attributes the carvings to pre-Columbian Taíno people. The specific meaning of the figures isn’t established in the sources for this trail, so they’re best appreciated as an old record of people using this place rather than as a message anyone can confidently translate. On the approach, the estate remains and waterworks add another layer of history to the same valley.

The freshwater setting can support small fish, shrimp, frogs, dragonflies and hummingbirds, though any one visit may be quiet. From near the pool, the rock face and water make the defining view; the carvings are small in a wide phone photo, so use a tighter frame to record them. The waterfall is a sometimes feature of the scene, not a promise. Turn around at the pool for this trail’s route; continuing down Reef Bay Trail toward the sugar mill and beach is a longer outing with a different endpoint.